{"id":"CVE-2026-98835","title":"kernel: iio: accel: kionix-kx022a: Fix array boundary check (CVE-2026-98835)","summary":"A flaw was found in the Linux kernel's Kionix KX022A accelerometer driver. A local user could trigger a Denial of Service (DoS) or kernel memory disclosure due to an off-by-one array bounds validation check when converting device register …","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":"CWE-125","vendor":"Red Hat","product":"Linux","affected":["Linux >= 7c1d1677b3227c6b18ac999f2b84778baa280b8f < 714d8f0b1c616a6a82be87ccb72271b6092773d1","Linux >= 7c1d1677b3227c6b18ac999f2b84778baa280b8f < 87746be179dca4d94d73d5a323a39a87bb2e90fc","Linux >= 7c1d1677b3227c6b18ac999f2b84778baa280b8f < 4c73c1859fa64509aae7e23a6dbd2d5c8a64c05d","Linux >= 7c1d1677b3227c6b18ac999f2b84778baa280b8f < 22d377178de281d21ddf908d03a8e9fde3339d9f","Linux >= 7c1d1677b3227c6b18ac999f2b84778baa280b8f < 0e65412aee4f651d2c9785f542a13e4b44002a75","Linux 6.2"],"published":"2026-10-18","updated":"2026-10-23","sourceUpdated":"2026-10-23T21:44:51+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98835.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98835.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98835"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2555209"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98835"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98835"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98835.mbox"},{"url":"https://git.kernel.org/stable/c/714d8f0b1c616a6a82be87ccb72271b6092773d1"},{"url":"https://git.kernel.org/stable/c/87746be179dca4d94d73d5a323a39a87bb2e90fc"},{"url":"https://git.kernel.org/stable/c/4c73c1859fa64509aae7e23a6dbd2d5c8a64c05d"},{"url":"https://git.kernel.org/stable/c/22d377178de281d21ddf908d03a8e9fde3339d9f"},{"url":"https://git.kernel.org/stable/c/0e65412aee4f651d2c9785f542a13e4b44002a75"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00168,"epssPercentile":0.06031,"ingestedAt":"2026-10-18T16:47:32.469Z","slug":"CVE-2026-98835","body":"## Overview\n\nA flaw was found in the Linux kernel's Kionix KX022A accelerometer driver. A local user could trigger a Denial of Service (DoS) or kernel memory disclosure due to an off-by-one array bounds validation check when converting device register values to array indices. This flaw leads to an out-of-bounds read beyond the allocated buffer, potentially crashing the system.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98835.json)\n\n**kernel: iio: accel: kionix-kx022a: Fix array boundary check** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-23.\n\nNot affected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\n## Remediation\n\nRefer to the advisory for fix availability.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":228624,"id":"CVE-2026-98835","ts":1792844817750,"field":"cvss","old":null,"new":"5.5"},{"seq":228623,"id":"CVE-2026-98835","ts":1792844817750,"field":"severity","old":"none","new":"medium"}]}